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Graylog vs ManageEngine EventLog Analyzer vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Mindshare comparison

As of July 2025, in the Log Management category, the mindshare of Graylog is 6.5%, up from 5.9% compared to the previous year. The mindshare of ManageEngine EventLog Analyzer is 0.8%, down from 1.1% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.3%, down from 10.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management
 

Featured Reviews

Ivan Kokalovic - PeerSpot reviewer
Facilitates backend service monitoring with efficient log retrieval and API flexibility
Graylog is valuable because it bridges technical knowledge to non-technical teams, presenting complex backend processes in a simple timeline. It boosts the knowledge of sales and customer support teams by allowing them to see the backend operations without needing to read the code. Its API is flexible for visualization, and its powerful search engine efficiently handles large volumes of log data. Moreover, its stability, fast search capabilities, and compatibility with languages like ANSI SQL enhance its utility in IT infrastructure.
Md Abdul Hakim - PeerSpot reviewer
Efficient log management enhances activity monitoring despite VPN user issue
Last month, we faced an issue with a Hawaiian VPN user activity. It's like a Fortinet device configured for VPN users. When a VPN user logs in, it doesn't really capture the time before this. If you're testing with existing or new device integration, then the product will be good in the market.
ROBERT-CHRISTIAN - PeerSpot reviewer
Has many predefined correlation rules and is brilliant for investigation and log analysis
It is very complicated to write your own correlation rules without the help of Splunk support. What Splunk could do better is to create an API to the standard SIEM tools, such as Microsoft Sentinel. The idea would be to make it less painful. In ELK Stack, Kibana is the query language with which you can search log files. I believe Splunk has also a query language in which they search their log files, but once you have identified the log file that you want to use for further security correlation, you want to very quickly transport that into your SIEM tool, such as Microsoft Sentinel. That is something that Splunk could make a little bit less painful because it is a lot of effort to find that log file and forward it. An API with Microsoft Sentinel or a similar SIEM tool would be a good idea.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"I like the correlation and the alerting."
"It has data adapters and lookup tables that utilize HTTP calls to APIs."
"It is used as a log manager/SIEM. It provides visibility into the infrastructure and security related events."
"We have scaled from a single machine installation (a VM with a Graylog + ES + MongoDB) to (2 Graylog + 2 ES + 3 MongoDB). This was done smoothly with a minimal impact on logging."
"Graylog is very handy."
"The ability to write custom alerts is key to information security and compliance."
"We run a containerized microservices environment. Being able to set up streams and search for errors and anomalies across hundreds of containers is why a log aggregation platform like Graylog is valuable to us."
"We're using the Community edition, but I know that it has really good dashboarding and alerts."
"The most valuable features of ManageEngine EventLog Analyzer are the number of capabilities, file integration monitoring, web server log collection, and alert configuration."
"The tool's reports show activities."
"The user interface is very good."
"The reporting features are noteworthy, as they provide templates that streamline the process of generating reports"
"The support system is very good."
"ManageEngine EventLog Analyzer is easy to gather reports to give to management. My supervisor has access to the solution and he enjoys the graphs."
"It's one of the easiest products. It's very simple to use."
"The log management has helped to improve my organization."
"The level of robustness on offer is very good."
"Splunk has improved our operations by giving us access to more information and allowing us to deploy more use cases."
"I have not seen any outages in the product in the past two years that it has been running in our company, so I think it is good when it comes to the stability part."
"The solution allows easy gathering and ingestion of the data."
"The correlation capabilities are the first value that our clients say they like with Splunk."
"I find it beneficial that Splunk Enterprise Security easily integrates with other tools. Due to its excellent API capabilities, it facilitates connections with various cybersecurity tools."
"We were able to create a catalog of dashboards and have a holistic view at all levels. We could understand our business much better. Real-time errors, which were buried in emails before now, surfaced up on dashboards."
"Splunk Enterprise Security enhances business resilience and assists with threat detection by centralizing security data."
 

Cons

"Lacks sufficient documentation."
"More complex visualizations and the ability to execute custom Elasticsearch queries would be great."
"I would like to see a date and time in the Graylog Grok patterns so that I can save time when searching for a log. I like how the streams and the search query work, but adding a date and time will allow me to pull out a log in a milli-second."
"Graylog needs to improve their authentication. Also, the fact that Graylog displays logs from the top down is just ridiculous."
"The biggest problem is the collector application, as we wanted to avoid using Graylog Collector Sidecar due to its architecture."
"Dashboards, stream alerts and parsing could be improved."
"I hope to see improvements in Graylog for more interactivity, user-friendliness, and creating alerts. The initial setup is complex."
"Elasticsearch recommendations for tuning could be better. Graylog doesn't have direct support for running the system inside of Kubernetes, so it can be challenging to fill in the gaps and set up containers in a way that is both performant and stable."
"The customization of reports could be a lot easier. It is not difficult but it could be made easier."
"Last month, we faced an issue with a Hawaiian VPN user activity."
"It may not be as easy to use as Splunk."
"There's a lot to improve in terms of connectivity. Currently, we're utilizing it across various infrastructures and environments, including others' cloud. However, connecting it to our infrastructure and integrating it with some of our SMAX solutions poses difficulties."
"What I'd like to see as an improvement to ManageEngine EventLog Analyzer is for it to be more AI-driven. Having more automation would also make the solution better."
"Last month, we faced an issue with a Hawaiian VPN user activity. It's like a Fortinet device configured for VPN users."
"The solution is stable. However, there are limits. For example, we can do 2,500 Syslog events per second, but if we want to do more we have to install the distributor structure, and then we can expand how many events we can do. They could improve the stability."
"The first tier of customer service and support is not great."
"Splunk is such a large product. Allowing it to be more easily used by people who have not had a lot of training on it would be an improvement."
"Splunk needs local technical support."
"I would like to have fraud detection features. Fraud is within the same turf as with security operations. Fraud and cybersecurity work hand in hand. I would like to have detection capabilities, or at least dashboards in Enterprise Security for fraud."
"In terms of the interface, it could include some improvements for the look and feel."
"The implementation and the scanning of the logs can be difficult."
"Splunk could enhance its services by providing more comprehensive professional assistance aimed at optimizing our investment."
"An area of improvement would be the licensing of the solution. They need a free license, which would allow faster lead times."
"Its search or filtering capability is nice, but it can be improved. It is currently a bit complicated, and it should be simplified. If we can write the search filter in a more simplified way, it would be better."
 

Pricing and Cost Advice

"We're using the Community edition."
"There is an open source version and an enterprise version. I wouldn't recommend the enterprise version, but as an open source solution, it is solid and works really well."
"​You get a lot out-of-the-box with the non-enterprise version, so give it a try first."
"Consider Enterprise support if you have atypical needs or setup requirements.​"
"I am using a community edition. I have not looked at the enterprise offering from Graylog."
"Having paid official support is wise for projects."
"Graylog is a free open-source solution. The free version has a capacity limitation of 2 GB daily, if you want to go above this you have to purchase a license."
"It's open source and free. They have a paid version, but we never looked into that because we never needed the features of the paid version."
"We paid for the license of the solution and the deployment. The price of ManageEngine EventLog Analyzer is less expensive than other solutions."
"There is a license required for these solutions. The customer can choose the license type, such as an annual license purchase or a perpetual license. If the customer wants maintenance they will have to pay annually."
"ManageEngine EventLog Analyzer is expensive. Its licensing costs are annual."
"Licensing for ManageEngine EventLog Analyzer is paid yearly."
"ManageEngine EventLog Analyzer is a low-cost solution. It costs approximately $1,000 per month per server for a perpetual license."
"There is a yearly subscription for the solution."
"Luckily, we come under a large federal agency, and before the pandemic, they signed a large enterprise license agreement. It worked out great and to our advantage because we are a small organization. We got a 300 gig license, and we just did not have the buying power to be able to get products cheaply. Because we all partnered together under the agency umbrella, we were able to get Splunk Enterprise Security, UBA, and ITSI for cheap. This was good considering the fact that some of these premium apps require a minimum number of users, and we do not have the number of people needed to even justify buying it."
"Splunk Enterprise Security is affordable."
"Splunk Enterprise Security is a bit expensive overall, but it provides good value."
"I remember Splunk being relatively affordable. Kibana was more reasonable, but you get more with Splunk. If I was suggesting something, I would probably suggest Splunk because it is better to pay a little bit more and get a lot more."
"I assume that the pricing is reasonable, because if it was too costly, there are other alternatives."
"Although Splunk is an expensive product, it is designed to be utilized across your organization in order to maximize your ROI and lower your TCO."
"Splunk's cost is very high. They need to review the pricing. They have to go back and totally readdress the market."
"Splunk Enterprise becomes extremely expensive after the 20GB/month license."
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Comparison Review

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Top Industries

By visitors reading reviews
Computer Software Company
17%
Comms Service Provider
10%
Government
7%
University
7%
Computer Software Company
18%
Government
9%
Manufacturing Company
8%
Healthcare Company
7%
Financial Services Firm
14%
Computer Software Company
14%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Graylog?
The product is scalable. The solution is stable.
What is your experience regarding pricing and costs for Graylog?
I am not familiar with the pricing details of Graylog, as I was not responsible for that aspect. It was determined th...
What needs improvement with Graylog?
An improvement I would suggest is in Graylog's user interface, such as allowing for font size adjustments. A potentia...
What do you like most about ManageEngine EventLog Analyzer?
The reporting features are noteworthy, as they provide templates that streamline the process of generating reports
What needs improvement with ManageEngine EventLog Analyzer?
Last month, we faced an issue with a Hawaiian VPN user activity. It's like a Fortinet device configured for VPN users...
What is your primary use case for ManageEngine EventLog Analyzer?
I find this solution useful for IT devices as a live stream to work with Syshun, serving as both the router and the t...
What SOC product do you recommend?
For tools I’d recommend: -SIEM- LogRhythm -SOAR- Palo Alto XSOAR Doing commercial w/o both (or at least an XDR) is a...
What is a better choice, Splunk or Azure Sentinel?
It would really depend on (1) which logs you need to ingest and (2) what are your use cases Splunk is easy for ingest...
How does Splunk compare with Azure Monitor?
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitor...
 

Also Known As

Graylog2
EventLog Analyzer
No data available
 

Overview

 

Sample Customers

Blue Cross Blue Shield, eBay, Cisco, LinkedIn, SAP, King.com, Twilio, Deutsche Presse-Agentur
Moody National Bank, EnCircle, Goldleaf Financial Solutions, Inc, IBM, Ernst & Young, Micro Linear, Silverbeck-Rymer Solicitors, Provincial Court of British Columbia, Eleventh Judicial Circuit of Florida, OGILVY & MATHER, E! Entertainment, Tribune-Review Publishing Co.
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Find out what your peers are saying about Wazuh, Splunk, Datadog and others in Log Management. Updated: July 2025.
861,524 professionals have used our research since 2012.